Clamping device.



W. DONALD. LAMPING DEVICE. APPLIUATION FILED HAY 1, 190s.

wirNEssE's INVENTOR l V MPM/ I K y f ,l ATTORNEY Patented My 11, 1909.

3 SHEETS-SHEET 1.

vW. DONALD. GLAMPING DEVICE. APPLIUATION FILED MAY 1, 190s.

Patented May 11,1909.

QSHEETS-SHEET 2.

WITNESSS ATTORNEY W. DONALD. GLAMPING- DEVICE. APPLIoA'TIoN FILED MAY 1, 190B.

Patented May 11, 1909.

3 SHEETS-SHEET 3.

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WILLIAM DONALD, OF TONOFAH, NEVADA.

CLAMPING DEVICE Specification 0i Letters Patent.

Patented May ll, 1909.

Application filed May l, 1908. Serial No. @30,31%

To all whom it may concern:

Be it known that I, VJILLIAM DONALD, a citizen of the United States, residing at Tonopah, county of Nye, and State of Nevada, have invented a certain new and useful Improvement in Clamping Devices, of which the following is a specification.

My invention relates to a new and useful improvement in clamping devices for attachment to the beds 'of planers or shapers for planing shoes and wedges for locomotive driving boxes, and has for its object to provide an exceedingly simple and effective arrangement by which such articles may be planed at any desired angle, thus overcoming the loss of time in setting a shoe or wedge by blocking up as has heretofore been the case.

With these ends in view, this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, I will describe its construction in detail, referring by letter to the accompanying drawing forming a part of this specification, in which- Figure l is a perspective of my improved adjusting clamp showing a shoe secured thereon. FiO. 2, a side view of the base of the clamp. Fig. 3, a side view of the clamp assembled showing a shoe to be planed secured thereon. Fig. 4, a top view of the swinging member of the clamp. Fig. 5, a side view of the same. Fig. 6, a bottow view of the clamp. Fig. 7 a plan view of the base. Fig. 8, a front end view of the base. Fig. 9, a front end view of the swinging member. Fig. 10, an enlarged detail view ofthe adjusting nut, and Fig. l1, a plan view of said nut.

In carrying out my invention as here embodied, A represents the base of the clamp which is provided with a rib or spline A adapted to fit in the longitudinal groove in the planer or shaper bed and to be clamped upon said bed by bolts passed through the ears B. Y

Iith the rear portion of the base vare formed the lugs C between which is fitted the lug D formed upon the swinging member E and a pin F passed through these lugs serves to pivot the two members together.

The swinging member E is slotted at its front end as indicated at G for the reception of the adjusting nut H, which latter is flanged to overlap the edges of the groove in order that it may be held in place while permitting a limited sliding movement.

I represents the adjusting screw which is threaded through the nut l-I and swiveled in the base as indicated in dotted lines at J, and when this screw is revolved in one direction or the other the nut and conse uently the outer end of the swinging mem )er will be raised or lowered as the case may be.

In order that the swinging member when adjusted to the proper angle may be securely held in place while the worl; is being performed I provide clamp bolts L which pass through the slots L formed in the posts M, and these bolts are threaded into the sides of the swinging member and when tightened up will hold said member in any adjustment as will be readily understood.

N represents a stop block which is adjusted to the swinging member by the bolt O which slides in the groove F, the head of said bolt bearing upon the under side of said member so as to permit the clamping of the stop block in place.

Q represents the shoe or wedge to be planed, and in practice is set upon the top of the swinging member and the bolt Q threaded therein and the stop block adjusted to hold the shoe against lengthwise movement, and to adapt the clamp for holding shoes of various widths I provide the small adjusting screws R which are threaded into one side of the swinging member and may be so adjusted as to form a bearing for one wall ofthe groove in the shoe.

After the shoe has been secured in place upon the swinging member the proper manipulation ofthe adjusting screw I will raise or lower the outer end of the swinging member and thus change the angle of the upper surface of the shoe relative to the movement of the planer tool.

Having thus fully described my invention, what I claim as new and useful, is-

l. The herein described combination of a base, a rib formed therewith for engagement with the longitudinal slots of a planer bed, means for securing said base to said bed, lugs formed upon the base, a swinging member, a lug formed upon said swinging member, a pin pivoting the lugs together, an adjusting screw swiveled in the base, a nut through which said screw is threaded, said nut being fitted to slide longitudinally upon said swinging member, posts formed with the b ase, and clamp bolts passed through slots in the posts and threaded into the sides of the swinging member for clamping the latter in any adjustment, as speclfied.

2. The herein described combination of a. base, a rib formed therewith for engagement with-the longitudinal slots of a planer bed, means for securing said base to said bed, lugs formed upon the base, a swinging member, a lug formed upon said swinging member, a pin pivoting the lugs together, an adjusting screw swiveled in the base, a. nut through which said screw is threaded, said i'ilut being fitted Vto slide longitudinally upon safi'd swinging member, posts formed with the base, clamp bolts passed through slots in the posts and threaded into the sides of the swinging member for clamping the latter in any adjustment, means for clamping the Work upon the swinging member, and a stop blockl adjustably secured to said member, as specified.

In testimony whereof I have hereunto affixed my signature in the presence of two subscribing witnesses.

WILLIAM DONALD.

Titnesses En. C. PETERSON, J. R. VIGAL. 

